Insulator



, July 31, 1928.

J. 'R. MARSHALL INSULA'IOR Filed Sept. 10, 1927 JAWZWZM BY Q Amnmzys Patented. July 1928.

PATENT GFFICE.

JOHN R. MARSHALL, 0F MCKEAN, PENNSYLVANIA.

INSULA'IOR.'

Application filed September 10, 1927. Serial No. 218,675.

The present invention is designed to improve insulator supports and so formed that the wire may be very readily detached. Features and details of the invention will appear from the specification and claims.

A preferred exemplification of the invention is shown in the accompanying drawings as follows Fig. 1 shows a perspective view of the device.

Fig. 2 an end view of the same, the insulator being in open position permitting the removal of the conductor wire.

Fig. 3 a section on the line 3-3 in Fig. 2.

Fig. la section on the line 4-4 in Fig. 2.

1 marks the bottom insulator block, and 2 the upper insulator block. These blocks are preferably rectangular and have the opposing grooves 3 which with the blocks assembled form a perforation 5 receiving the conductor wire a.

Hook bars formed of a bottom 6, rear upright 7, and front upright 9 receive the bot tom insulator block 1, the bottom insulator block being provided with shoulders 8 engaging the bottoms 6 to lock the insulating block against endwise movement. The front uprights 9 are provided with hinge eyes 10 at their upper ends.

An angle bar 11 is secured to the hook portions at their lower rear corner and this angle bar 11 is secured to a bottom back plate 12. Each plate is bent at 13 to the rear and then outwardly at 15 forming perforated ears 1 f by means of which the back plate may be secured to a support.

The upper ends of the hook bars are secured by rivets 16 to a back plate 17 similar in construction to the back plate 12.

'A hinge plate 18 has a downwardly ere tending forward edge 19 with a hinge butt 20 formed at its lower edge. A pintle 21 extends through the eyes 10 and butt 20 completing the hinge. The hinge plate hasan upwardly extending part 22 through which a screw 22 extends, the screw extending int-o tom half comprising hook plates in which the half is mounted; atop plate hinged to the hook plates and carrying-the top half; and means locking the top plate to the hook plates.

2. In an insulator, the combination of an insulator block formed of top and bottom halves, said halves having opposing faces forming a wire-receiving perforation with the blocks assembled; a support for-the bottom half comprising hook plates in which the half is mounted; back plates joining the hook plates; a top plate hinged to the hook plates carrying the top half; and means locking the top plate with the hook plates.

8. In an insulator, the combination of an insulator block formed of top and bottom halves, said halves having opposing faces forminga wire-receiving perforation with the blocks assembled; a support for the bottom half comprising hook plates in which the half is mounted; an angle iron arranged between the hook plates at their lower rear corners; back plates on which the hook plates are mounted; a top plate hinged to the hook plates; and means securing the top plate in closed position. i

In testimony whereof I have hereunto Set my hand.

JOHN R. MARSHALL. 

